FluxProof MCP

FluxProof is a website change monitoring service that provides evidence-bearing public webpage monitoring. It allows agents to watch public URLs for changes, receiving before/after diffs, SHA-256 fingerprints, and signed webhooks. The MCP server enables AI agents to programmatically create monitors, list changes, and retrieve evidence packets for compliance or price tracking.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-18Operated by FluxProof

MCP endpoint (Streamable HTTP)

https://fluxproof.tryneverclosed.com/mcp

Vendor documentation

What you can do with it

Monitor public web pages for content changes
Retrieve before and after diffs with fingerprints
Receive signed webhooks for change alerts
Access evidence packets for compliance

Tools advertised by the last live check:

fluxproof_preflight
fluxproof_get_free_key
fluxproof_offer
fluxproof_create_monitor
fluxproof_check_now
fluxproof_list_changes

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http fluxproof-mcp https://fluxproof.tryneverclosed.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add fluxproof-mcp --url https://fluxproof.tryneverclosed.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable fluxproof-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "fluxproof-mcp": {
      "url": "https://fluxproof.tryneverclosed.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "fluxproof-mcp": {
      "type": "streamableHttp",
      "url": "https://fluxproof.tryneverclosed.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start fluxproof-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "fluxproof-mcp": {
      "type": "http",
      "url": "https://fluxproof.tryneverclosed.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http fluxproof-mcp https://fluxproof.tryneverclosed.com/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "fluxproof-mcp": {
      "url": "https://fluxproof.tryneverclosed.com/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "fluxproof-mcp": {
      "serverUrl": "https://fluxproof.tryneverclosed.com/mcp"
    }
  }
}

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